Chemical Engineering (CE): Recent submissions
Now showing items 21-40 of 214
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Oxidation of Aromatic hydrocarbons
TITLE: THE OXIDATION OF AROMATIC HYDROCARBONS. The literature on the oxidation of benzene, phenol, p-quinone and maleic anhydride has been reviewed. Various kinetic models have been presented for oxidation of benzene but ... -
Studies in gas-solid catalytic reactions : redox kinetics in pore-diffusion regime
Knowledge about the effect of diffusional intrusion on the kinetics of a gas–solid catalytic reaction-very common in process industries-is essential for a better understanding of these reactions in industrial reactors. The ... -
Heat and mass transfer studies in solid state fermentations
Solid-state fermentation (SSF) processes have long been employed in the production and preservation of a variety of foods, and in the production of enzymes, organic acids, antibiotics and other microbial products. They are ... -
Estimation of thermophysical properties of binary organic solutions- surface tensions
Thermophysical properties present an interesting field of research to understand molecular nature and behaviour. The primary reason is that these properties mirror any change at the molecular level. One such property is ... -
Computational fluid dynamics(CFD): Studies on Centrifugal contactors
Annular centrifugal contactors find application in liquid–liquid extraction processes in various industries such as reprocessing of spent nuclear fuel, hydrometallurgy, petrochemicals, pharmaceuticals, etc. The special ... -
Vapour phase oxidation of p-xylene
The kinetic study on the oxidation of p-xylene has been carried out. The oxidation of p-xylene on the following two catalysts has been studied: (a) tin vanadate (b) ferric molybdate (Boreskov’s composition) Ferric molybdate ... -
Mathematical and Statistical Modeling of Epidemiology of Asymptomatic COVID-19 Infections and Vaccine Design Strategies
A defining feature of the COVID-19 pandemic has been the high prevalence of asymptomatic SARS-CoV-2 infections – laboratory-confirmed cases where individuals never develop symptoms. Accurately estimating the proportion ... -
Oxidation of Sulfur Dioxide with Copper (II) catalyst in aqueous solution and on poly-4-vinylpyridine resin
Air pollution by sulfur dioxide is of great concern due to its harmful effects on environment, human beings, fauna and flora. Thermal power plants and industries employing combustion of carbonaceous fuels are the major ... -
Studies on fluidised-bed electrode
Flowing electrolyte The mass transfer coefficient k between the flowing electrolyte and the outer wall of an annulus in streamline flow varies as … The mass?transfer data obtained in streamline flow in this investigation ... -
Oxidation of ortho-xylene
The thesis embodies the work on the vapour?phase oxidation of o-xylene over sintered and compacted vanadium pentoxide catalyst in a fixed?bed reactor (FBR) and a continuous stirred?tank catalytic reactor (CSTCR). A survey ... -
Chemical process deveoopment for sodium dithionite- a kinetic study of sodium formate process
(1) The kinetics of formation of sodium dithionite has been investigated in homogeneous aqueous phase. The rate of hydrolysis of sodium formate has been found to be the rate?controlling step. The following rate equation ... -
Studies in drop formation
An exhaustive survey of literature has indicated that no investigation has been carried out on drop formation in non?Newtonian fluids. Further, it is noted that little attention has been paid to the problem of drop formation ... -
Investigations on gas-liquid ejectors
A gas–liquid ejector offers relatively higher interfacial area and can be seriously considered as a cocurrent gas–liquid contactor. A model has been proposed, which assumes the contactor comprises a series of stirred vessels ... -
studies on thermal decomposition of calcium carbonate /calcium hydroxide for energy storage
Alternate energy sources are essential to meet the present?day energy demands. Non?conventional energy resources may substitute for natural sources to some extent and they alleviate discomfortable thoughts about the impending ... -
Dynamics of gas bubbles in liquids
The study of bubble formation in liquids is of great importance because of its application in the design of many industrial bubble contactors like distillation columns, bubble cap columns, absorption towers, reactors, extraction ... -
Enzymatic synthesis of esters in supercritical fluids
Lipases are enzymes that are widely used to catalyze a variety of industrially important reactions. However, lipase?catalyzed reactions are heterogeneous and mass?transfer limited. Therefore, in most cases the reaction ... -
Structure and Rheology of Lyotropic Liquid Crystals
The aim of the present work is to probe the structure and rheology of the various lyotropic liquid crystalline substances. For this purpose, a commercial rheometer is used for studying the rheology of the substance and a ...